Forward Citations = 225

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4 inventors (with patents filed for the assignee):

Takao Kamiyama (14 out of 91 patents)

Yasuhiro Yokoshima (14 out of 48 patents)

Shigeru Endoh (14 out of 34 patents)

4. Hiroyuki Aoki (14 out of 23 patents)

14 patents: Sort by Forward Citations

1. 6158473 - Branch pipe liner bag and pipe lining method (2000-12-12),

2. 6152184 - Branch pipe liner bag and branch pipe lining method (2000-11-28),

3. 6136135 - Method of manufacturing a pipe liner bag (2000-10-24),

4. 6123109 - Branch pipe lining bag and pipe lining method (2000-09-26),

5. 6085794 - Pipe lining method (2000-07-11),

6. 6056017 - Pipe lining method (2000-05-02),

7. 6054180 - Method for impregnating a tubular resin-absorbable liner with resin (2000-04-25),

8. 6042668 - Pipe liner bag and manufacturing methods therefor (2000-03-28),

9. 6024910 - Method for lining a tubular conduit (2000-02-15),

10. 6006787 - Branch pipe liner bag and branch pipe lining method (1999-12-28),

11. 5971031 - Branch pipe liner bag and pipe lining method (1999-10-26),

12. 5944058 - Branch pipe liner assembly and a pipe lining method (1999-08-31),

13. 5916406 - Branch pipe liner bag and pipe lining method (1999-06-29),

14. 5846025 - Apparatus and a method for lining an underground pipe (1998-12-08),

Company Overview

Oar Company, based in Tokorozawa, Japan, specializes in the development and manufacturing of advanced materials and innovative technologies. The organization focuses on enhancing performance across various sectors, including automotive engineering and electronics. With a commitment to research and development, Oar Company aims to create solutions that address contemporary challenges in material science and engineering, positioning itself as a key player in the global market for high-performance materials.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

14 Patents

#1 in Tokorozawa

#3,577 in Japan

#42,199 in the World

Tokorozawa, Japan

Oar Company

Forward Citations = 225

4 inventors:

Takao Kamiyama (14 out of 91 patents)

Yasuhiro Yokoshima (14 out of 48 patents)

Shigeru Endoh (14 out of 34 patents)

4. Hiroyuki Aoki (14 out of 23 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Oar Company. Retrieved from https://idiyas.com/company/oar-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]